I'm almost certain that natural gas has passed up Nuclear as a source in Ohio, and quite likely coal too. There are several newer combined-cycle gas-fired power plants scattered around the state, and I know that they've de-commissioned several coal-fired plants in that state (along with most every other state).
The experiment has already been run, under optimal conditions, and it failed.
The island of El Hierro, in the Spanish Canary Islands (as Spanish as Hawaii is American) has an abundance of:
1. Steady wind.
2. Full solar (latitude and weather)
3. “Gravity lakes” for pumping water uphill during peak wind/solar, and “harvesting” hydro energy by gravity off-peak.
There was probably no first-world, technological spot on the plant as perfect for a “sustainable green energy” experiment.
It failed. El Hierro still needs to import hydrocarbons. With literally everything going for it, max wind and solar, it could not run independently. El Hierro was probably as close to a perfect closed system experiment as we will ever find.
https://inhabitat.com/el-hierro-the-worlds-first-renewable-energy-island-or-is-it/